<div>
    <input name="numberField" class="umb-editor umb-number" 
           type="number" 
           ng-model="model.value"
           val-server="value"
            fix-number />

    <span class="help-inline" val-msg-for="numberField" val-toggle-msg="number">Not a number</span>
    <span class="help-inline" val-msg-for="numberField" val-toggle-msg="valServer">{{propertyForm.requiredField.errorMsg}}</span>
    
</div>